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Solve the Quadratic Inequality (5+4x)2≥−4( 5 + 4 x ) ^ { 2 } \geq - 4

Question 381

Multiple Choice

Solve the quadratic inequality. Write the solution set in interval notation.
- (5+4x) 2≥−4( 5 + 4 x ) ^ { 2 } \geq - 4


A) (−∞,−74) ∪(−34,∞) \left( - \infty , - \frac { 7 } { 4 } \right) \cup \left( - \frac { 3 } { 4 } , \infty \right)
B) ∅\varnothing
C) [−74,−34]\left[ - \frac { 7 } { 4 } , - \frac { 3 } { 4 } \right]
D) (−∞,∞) ( - \infty , \infty )

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